The values of ΔH and ΔS of a certain reaction are –400 kJ mol–1 and –20 kJ mol–1K–1 respectively. The temperature below which the reaction is spontaneous is
100°K
20°C
20°K
120°C
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The work done when two mole of an ideal gas is compressed from a volume of 5 m3 to 1 dm3 at 300 K, under a pressure of 100 kPa is