MEDIUMMCQ SINGLEIChO (Chemistry Olympiad)Physical ChemistryThermodynamics and ThermochemistryPrevious Year Questions
The values of H and S for the reaction, (graphite) 2(g) (g) C CO 2CO → Are 170 kJ and 170 JK–1, respectively. This reaction will be spontaneous at (2009)
A.910 K
B.1110 K✓ Correct
C.510 K
D.710 K
Explanation
G ve . Given: H = 170 kJ = 170 × 103J, S = 170 JK–1 Applying, G = H – T S , the value of G = –ve only when T S H , which is possible only when T = 1110 K.
Practice More Like This
Take chapter-wise tests, track your progress, and master Thermodynamics and Thermochemistry.
Start Free Practice →