One Pascal is the pressure exerted by a force of one newton, normally on an area of one square meter. Atmospheric pressure is the force per unit area by the weight of air on a point. One atmospheric pressure is related with the Pascal as: \(1 \,atm =101325 \,Pa\)
Some Basic Concepts of Chemistry
185616
Dimensions of pressure are same as that of
1 Energy
2 Force
3 Energy per unit volume
4 Force per unit volume
Explanation:
(c) Pressure \( = \frac{{{\rm{Force}}}}{{{\rm{Area}}}}\)\( = \frac{{[ML{T^{ - 2}}]}}{{[{L^2}]}} = [M{L^{ - 1}}{T^{ - 2}}]\) Energy per unit volume \( = \frac{{[M{L^2}{T^{ - 2}}]}}{{[{L^3}]}} = [M{L^{ - 1}}{T^{ - 2}}]\)
Some Basic Concepts of Chemistry
185617
The prefix \({10^{18}}\) is
1 Giga
2 Nano
3 Mega
4 Exa
Explanation:
The prefix \(10^{18}\) is Exa. Its symbol is \(E\). Giga \((G)\) represents \(10^9\). Nano \((n)\) represents \(10^{-9}\). Kilo represents \(1000\). Thus, \(1 \,kg =1,000\, g\)
Some Basic Concepts of Chemistry
185618
Given the numbers : \(161\,cm, 0.161\,cm, 0.0161\, cm\). The number of significant figures for the three numbers are
1 \(3, 4\) and \(5\) respectively
2 \(3, 3\) and \(3\) respectively
3 \(3, 3\) and \(4\) respectively
4 \(3, 4\) and \(4\) respectively
Explanation:
as all non-zero digits are significant and the zeros at the beginning of a number are not significant. the zeros trailing decimal point are not significant. Therfore number \(161 \,cm , 0.161 \, cm\) and \(0.0161 \,cm\) have \(3,3\) and \(3\) significant figures respectively
One Pascal is the pressure exerted by a force of one newton, normally on an area of one square meter. Atmospheric pressure is the force per unit area by the weight of air on a point. One atmospheric pressure is related with the Pascal as: \(1 \,atm =101325 \,Pa\)
Some Basic Concepts of Chemistry
185616
Dimensions of pressure are same as that of
1 Energy
2 Force
3 Energy per unit volume
4 Force per unit volume
Explanation:
(c) Pressure \( = \frac{{{\rm{Force}}}}{{{\rm{Area}}}}\)\( = \frac{{[ML{T^{ - 2}}]}}{{[{L^2}]}} = [M{L^{ - 1}}{T^{ - 2}}]\) Energy per unit volume \( = \frac{{[M{L^2}{T^{ - 2}}]}}{{[{L^3}]}} = [M{L^{ - 1}}{T^{ - 2}}]\)
Some Basic Concepts of Chemistry
185617
The prefix \({10^{18}}\) is
1 Giga
2 Nano
3 Mega
4 Exa
Explanation:
The prefix \(10^{18}\) is Exa. Its symbol is \(E\). Giga \((G)\) represents \(10^9\). Nano \((n)\) represents \(10^{-9}\). Kilo represents \(1000\). Thus, \(1 \,kg =1,000\, g\)
Some Basic Concepts of Chemistry
185618
Given the numbers : \(161\,cm, 0.161\,cm, 0.0161\, cm\). The number of significant figures for the three numbers are
1 \(3, 4\) and \(5\) respectively
2 \(3, 3\) and \(3\) respectively
3 \(3, 3\) and \(4\) respectively
4 \(3, 4\) and \(4\) respectively
Explanation:
as all non-zero digits are significant and the zeros at the beginning of a number are not significant. the zeros trailing decimal point are not significant. Therfore number \(161 \,cm , 0.161 \, cm\) and \(0.0161 \,cm\) have \(3,3\) and \(3\) significant figures respectively
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Some Basic Concepts of Chemistry
185615
One atmosphere is equal to
1 \(101.325\, K pa\)
2 \(1013.25 \,K pa\)
3 \({10^5}\,Nm\)
4 None of these
Explanation:
One Pascal is the pressure exerted by a force of one newton, normally on an area of one square meter. Atmospheric pressure is the force per unit area by the weight of air on a point. One atmospheric pressure is related with the Pascal as: \(1 \,atm =101325 \,Pa\)
Some Basic Concepts of Chemistry
185616
Dimensions of pressure are same as that of
1 Energy
2 Force
3 Energy per unit volume
4 Force per unit volume
Explanation:
(c) Pressure \( = \frac{{{\rm{Force}}}}{{{\rm{Area}}}}\)\( = \frac{{[ML{T^{ - 2}}]}}{{[{L^2}]}} = [M{L^{ - 1}}{T^{ - 2}}]\) Energy per unit volume \( = \frac{{[M{L^2}{T^{ - 2}}]}}{{[{L^3}]}} = [M{L^{ - 1}}{T^{ - 2}}]\)
Some Basic Concepts of Chemistry
185617
The prefix \({10^{18}}\) is
1 Giga
2 Nano
3 Mega
4 Exa
Explanation:
The prefix \(10^{18}\) is Exa. Its symbol is \(E\). Giga \((G)\) represents \(10^9\). Nano \((n)\) represents \(10^{-9}\). Kilo represents \(1000\). Thus, \(1 \,kg =1,000\, g\)
Some Basic Concepts of Chemistry
185618
Given the numbers : \(161\,cm, 0.161\,cm, 0.0161\, cm\). The number of significant figures for the three numbers are
1 \(3, 4\) and \(5\) respectively
2 \(3, 3\) and \(3\) respectively
3 \(3, 3\) and \(4\) respectively
4 \(3, 4\) and \(4\) respectively
Explanation:
as all non-zero digits are significant and the zeros at the beginning of a number are not significant. the zeros trailing decimal point are not significant. Therfore number \(161 \,cm , 0.161 \, cm\) and \(0.0161 \,cm\) have \(3,3\) and \(3\) significant figures respectively
One Pascal is the pressure exerted by a force of one newton, normally on an area of one square meter. Atmospheric pressure is the force per unit area by the weight of air on a point. One atmospheric pressure is related with the Pascal as: \(1 \,atm =101325 \,Pa\)
Some Basic Concepts of Chemistry
185616
Dimensions of pressure are same as that of
1 Energy
2 Force
3 Energy per unit volume
4 Force per unit volume
Explanation:
(c) Pressure \( = \frac{{{\rm{Force}}}}{{{\rm{Area}}}}\)\( = \frac{{[ML{T^{ - 2}}]}}{{[{L^2}]}} = [M{L^{ - 1}}{T^{ - 2}}]\) Energy per unit volume \( = \frac{{[M{L^2}{T^{ - 2}}]}}{{[{L^3}]}} = [M{L^{ - 1}}{T^{ - 2}}]\)
Some Basic Concepts of Chemistry
185617
The prefix \({10^{18}}\) is
1 Giga
2 Nano
3 Mega
4 Exa
Explanation:
The prefix \(10^{18}\) is Exa. Its symbol is \(E\). Giga \((G)\) represents \(10^9\). Nano \((n)\) represents \(10^{-9}\). Kilo represents \(1000\). Thus, \(1 \,kg =1,000\, g\)
Some Basic Concepts of Chemistry
185618
Given the numbers : \(161\,cm, 0.161\,cm, 0.0161\, cm\). The number of significant figures for the three numbers are
1 \(3, 4\) and \(5\) respectively
2 \(3, 3\) and \(3\) respectively
3 \(3, 3\) and \(4\) respectively
4 \(3, 4\) and \(4\) respectively
Explanation:
as all non-zero digits are significant and the zeros at the beginning of a number are not significant. the zeros trailing decimal point are not significant. Therfore number \(161 \,cm , 0.161 \, cm\) and \(0.0161 \,cm\) have \(3,3\) and \(3\) significant figures respectively