Time Left - 25:00 mins

Class XI Chemistry Thermodynamics 3

Attempt now to get your rank among 395 students!

Question 1

The densities of graphite and diamond at 298 K are 2.25 and 3.31 gcm^-3, respectively. If the standard free energy differences

is equal to 1895 J mol^-1, the pressure at which graphite will be transformed into diamond at 298 K is:

Question 2

In which of the following reactions, standard reaction entropy changes

is positive and standard Gibb's energy change

decreases sharply with increasing temperature?

Question 3

When 0.75 mol of an ideal gas expands isothermally and reversibly at 27℃from a volume of 15 to 25, then q will be

Question 4

What is ∆E for the system that does 500 cal of work on surroundings and 300 cal of heat is absorbed by the system?

Question 5

ïE^o of combustion of isobutylene is – X kJ mol^–1. The value of ïH^o is

Question 6

The heat of combustion of carbon to CO₂ is -393.5 KJ/mol. The heat released upon the formation of 35.2 g of CO₂ from carbon and oxygen gas is

Question 7

For which one of the following equations

_{equal to}

_{for the product?}

Question 8

9.0 gm of H₂O is vaporized at 100^oC and 1 atm pressure. If the latent heat of vaporization of water is xJ/ gm, then ïS is given by

Tags :

Sep 27NEET & AIIMS