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

Question

Physics

Melany Bauer

20 July, 11:09

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

+4

Answers (1)

Know the Answer?

Gabriela Strickland · Answer 1

51520J

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

How much energy must be added to a 2-kg piece of glass with a specific heatof 644 J / (kg°C) to increase its temperature from 10°C to 50°C?O A. 644,000 uO B. 51,520O C. 12,880 JO D. 77,280 J

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