\( 0.056 \, \text{kg} \) of Nitrogen is enclosed in a vessel at a temperature of \( 127^\circ \text{C} \). The amount of heat required to double the speed of its molecules is ________ \( \text{k cal} \).
(Take \( R = 2 \, \text{cal mol}^{-1}\,\text{K}^{-1} \))
