758 j of heat are added to 0.750 kg of copper. how much does its temperature change?(unit=degrees c) PLEASE HELPPPPPPP MEEEEEE

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Physics Ngọc Diệp 4 years 2021-08-26T19:38:35+00:00 2021-08-26T19:38:35+00:00 1 Answers 11 views 0

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Captcha* Giải phương trình 1 ẩn: x + 2 - 2(x + 1) = -x . Hỏi x = ? ( )

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thienthi · Answer 1 · 2021-08-26T19:39:39+00:00

Answer:

$2.6^{\circ}C$

Explanation:

When a certain amount of heat energy is supplied to a substance, the temperature of the substance increases according to:

$Q=mC\Delta T$

where

Q is the amount of heat energy supplied

m is the mass of the substance

C is the specific heat capacity of the substance

$\Delta T$ is the change in temperature

In this problem:

Q = 758 J is the heat supplied

m = 0.750 kg is the mass

$C=385kg/JC$ is the specific heat of copper

Solving for $\Delta T$ , we find the increase in temperature:

$\Delta T=\frac{Q}{mC}=\frac{758}{(0.750)(385)}=2.6^{\circ}C$