20855
Which of the following statements about a catalyst is true
1 It lowers the energy of activation
2 The catalyst altered during the reaction is regenerated
3 It does not alter the equilibrium
4 All of these
Explanation:
It’s obvious.
SURFACE CHEMISTRY
20856
Which of the following statements is true for a catalyst
1 It increases the energy of the reactants
2 It decreases the energy of the products
3 It decreases the energy of the reactants
4 It does not change the enthalpy of the reactants
Explanation:
(d)Catalyst does not depend on the enthalpy of the reactants.
SURFACE CHEMISTRY
20789
A solid acts as an adsorbent because it has
1 A definite shape
2 Small pores in it
3 Unsaturated valencies
4 A high lattice energy
Explanation:
Solid acts as a adsorbent because of unsaturated valencies. Activated charcoal is a great adsorbent because of it's huge surface area. While it doesn't bind very many ions/atoms/molecules per surface area (which is the characteristic of a 'good' adsorbent), due to very big surface area per unit of mass it can adsorb a lot of particles.
20855
Which of the following statements about a catalyst is true
1 It lowers the energy of activation
2 The catalyst altered during the reaction is regenerated
3 It does not alter the equilibrium
4 All of these
Explanation:
It’s obvious.
SURFACE CHEMISTRY
20856
Which of the following statements is true for a catalyst
1 It increases the energy of the reactants
2 It decreases the energy of the products
3 It decreases the energy of the reactants
4 It does not change the enthalpy of the reactants
Explanation:
(d)Catalyst does not depend on the enthalpy of the reactants.
SURFACE CHEMISTRY
20789
A solid acts as an adsorbent because it has
1 A definite shape
2 Small pores in it
3 Unsaturated valencies
4 A high lattice energy
Explanation:
Solid acts as a adsorbent because of unsaturated valencies. Activated charcoal is a great adsorbent because of it's huge surface area. While it doesn't bind very many ions/atoms/molecules per surface area (which is the characteristic of a 'good' adsorbent), due to very big surface area per unit of mass it can adsorb a lot of particles.
20855
Which of the following statements about a catalyst is true
1 It lowers the energy of activation
2 The catalyst altered during the reaction is regenerated
3 It does not alter the equilibrium
4 All of these
Explanation:
It’s obvious.
SURFACE CHEMISTRY
20856
Which of the following statements is true for a catalyst
1 It increases the energy of the reactants
2 It decreases the energy of the products
3 It decreases the energy of the reactants
4 It does not change the enthalpy of the reactants
Explanation:
(d)Catalyst does not depend on the enthalpy of the reactants.
SURFACE CHEMISTRY
20789
A solid acts as an adsorbent because it has
1 A definite shape
2 Small pores in it
3 Unsaturated valencies
4 A high lattice energy
Explanation:
Solid acts as a adsorbent because of unsaturated valencies. Activated charcoal is a great adsorbent because of it's huge surface area. While it doesn't bind very many ions/atoms/molecules per surface area (which is the characteristic of a 'good' adsorbent), due to very big surface area per unit of mass it can adsorb a lot of particles.
20855
Which of the following statements about a catalyst is true
1 It lowers the energy of activation
2 The catalyst altered during the reaction is regenerated
3 It does not alter the equilibrium
4 All of these
Explanation:
It’s obvious.
SURFACE CHEMISTRY
20856
Which of the following statements is true for a catalyst
1 It increases the energy of the reactants
2 It decreases the energy of the products
3 It decreases the energy of the reactants
4 It does not change the enthalpy of the reactants
Explanation:
(d)Catalyst does not depend on the enthalpy of the reactants.
SURFACE CHEMISTRY
20789
A solid acts as an adsorbent because it has
1 A definite shape
2 Small pores in it
3 Unsaturated valencies
4 A high lattice energy
Explanation:
Solid acts as a adsorbent because of unsaturated valencies. Activated charcoal is a great adsorbent because of it's huge surface area. While it doesn't bind very many ions/atoms/molecules per surface area (which is the characteristic of a 'good' adsorbent), due to very big surface area per unit of mass it can adsorb a lot of particles.
20855
Which of the following statements about a catalyst is true
1 It lowers the energy of activation
2 The catalyst altered during the reaction is regenerated
3 It does not alter the equilibrium
4 All of these
Explanation:
It’s obvious.
SURFACE CHEMISTRY
20856
Which of the following statements is true for a catalyst
1 It increases the energy of the reactants
2 It decreases the energy of the products
3 It decreases the energy of the reactants
4 It does not change the enthalpy of the reactants
Explanation:
(d)Catalyst does not depend on the enthalpy of the reactants.
SURFACE CHEMISTRY
20789
A solid acts as an adsorbent because it has
1 A definite shape
2 Small pores in it
3 Unsaturated valencies
4 A high lattice energy
Explanation:
Solid acts as a adsorbent because of unsaturated valencies. Activated charcoal is a great adsorbent because of it's huge surface area. While it doesn't bind very many ions/atoms/molecules per surface area (which is the characteristic of a 'good' adsorbent), due to very big surface area per unit of mass it can adsorb a lot of particles.