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scoray
1 month ago
5

What is the specific heat of an unknown metal if 1.67 kcal of energy are required to raise the temperature of 79.2 g sample of t

he metal by 63.3 degrees celsius
Chemistry
2 answers:
lions [2.9K]1 month ago
8 0

Answer:

The specific heat of the unknown metal registers at 0.333 cal/g°C

Explanation:

Step 1: Given data

1.67 kcal of heat is needed

Metal mass = 79.2 grams

Temperature increment = 63.3 °C

Step 2: To determine the specific heat of the metal

Q = m*c*ΔT

⇒ where Q = the energy applied = 1.67 kcal = 1670 cal

⇒ m = metal mass = 79.2 grams

⇒ c = specific heat to be calculated

⇒ ΔT = temperature change = 63.3 °C

1670 cal = 79.2 grams * c * 63.3 °C

c = 0.333 cal/g*°C

<pThus, the specific heat of the unknown metal is 0.333 cal/g°C
VMariaS [2.9K]1 month ago
4 0

Answer:

The solution to your inquiry is C = 0.000333 kcal/g°C

or C = 0.333 cal/g°C

Explanation:

Data

Q = 1.67 kcal

mass = 79.2 g

ΔT = 63.3°C

Formula

Q = mCΔT

Solving for C

C = Q/mΔT

Substituting values

C = 1.67/(79.2 x 63.3)

Simplifying

C = 1.67 / 5013.4

Final Result

C = 0.000333 kcal/g°C

or C = 0.333 cal/g°C

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