Calculate the heat capacity of a piece of wood if 350 g of the wood absorbs 4500 joules of heat, and its temperature changes from 35°C to 77°C. *
(2 Points)

Hydrogenation reactions, in which h2 and an "unsaturated" organic compound combine, are used in the food, fuel, and polymer industries. in the simplest case, ethene (c2h4) and h2 form ethane (c2h6). if 140 kj is given off per mole of c2h4 reacting, how much heat (in mj) is released when 12 kg of c2h6 forms?

Analyze the reaction to determine whether the reaction is exothermic or endothermic. explain your reasoning.

Which is true according to the law of conservation of energy