How many calories of energy must be added to 1 gram of water to increase its temperature by 1°c? a2.5 b4.18 c10 d1

Agreed, B is the answer because of the specific heat of water @4.184 j/g

Spontaneity tell us the direction of the reaction, but not how fast it goes. gibbs free energy brings together enthalpy, entropy and temperature in one easy formula. g = h - ts. and, finally the sign of delta g is always negative for a spontaneous reaction.

Woah that’s a lot to read xd i’ll try though. i’ll get back t you if. i know the andwer