If the temperatures of separate 27 g samples of gold, mercury, and carbon are to be raised by 20.0°C. How much heat (in joules) must be applied to each substance?

Answer 1

specific heat of gold: 0.129 J/g C (Joules per gram Celsius)

27 g Au, 20.0C

27 g (20.0C) x 0.129 J/gC = 69.7 J

And so on. Look up specific heat in your book or online.