Physical Chemistry Answers

Calculate the change in the entropy of 100 g of water when it freezes at 0 oC in a refrigerator ice tray. Standard entropy of (ice) = 43.2 J K-1 mol-1and Standard entropy of (water) = 65.2 J K-1 mol-1.

Phosphoenolpyruvate + H2O
⟷
Pyruvate + Phosphate

For this reaction,
Keq′
=7.4x1010Units


Determine the unit of
Keq
.

Distillation can be used to separate

1) write a balanced chemical equation for the combustion of octane?

Question No: 1. A system is undergoing expansion with Pop = p (pressure of the gas); then multistage compression with Pop = P. The initial and final volume for the expansion process are V i and Vf, respectively. The initial and final volume for the compression are Vf and Vi, respectively. Calculate the net work done in the whole process

Convert 10 kg to mg

Fractional distillation cannot be used to_________

X-ray is a useful analytical tool in the determination of ____________ .

The heat of neutralization of strong acid and a strong alkali is 57 kJ/mol. what is the heat released when 0.5 mole HNO3 solution is mixed with 0.2 mole of KOH ?