Question

How much energy must be added to a 2-kg piece of glass with a specific heat

of 644 J/(kg°C) to increase its temperature from 10°C to 50°C?
O A. 644,000 u
O B. 51,520
O C. 12,880 J
O D. 77,280 J

Answer 1

51520J

Step-by-step explanation:

The energy added to the piece of glass is also called heat needed to increase its temperature from 10°C to 50°C and it depends on the mass, specific heat capacity and the change in temperature.

Q=m.c.ΔT

Q=(2kg).(644J/(kg°C)).((50°C)-(10°C))

Q=51520J