Question

What is the specific heat of an unknown substance if 2000 J of energy are required to raise the temperature of 4 grams of the substance 5 degrees Celsius?

Answer 1

what is specific heat?

Answer 2

4.2J=1cal

Answer 3

1g, 1degree

Answer 4

something

Answer 5

here is the formula of the specific heat:
\[\Large c = \frac{Q}{{m\Delta T}} = \frac{{2000}}{{4 \cdot {{10}^{ - 3}} \cdot 5}} = ...\frac{{joules}}{{Kg \cdot kelvin}}\]

Answer 6

please note that, the quantity \(\Delta T\) can be measure with celsius degrees or with Kelvin degrees, since it is a \(difference\) bewtween two temperatures

Answer 7

measured*