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Vlad [161]
3 years ago
15

The specific heat capacity of ethanol is 2440J/kg °C. How many joules of energy will be required to heat 150g ethanol to 35°C if

the starting temperature is 22°C?
Physics
1 answer:
m_a_m_a [10]3 years ago
8 0

Answer:

Required energy = 4758 J

Explanation:

Specific heat capacity of a material is the amount of energy required to raise the temperature of one kilogram (kg) of that material through one degree Celsius (°C).    

Given data :

Specific heat capacity = c = 2440 J/kg.°C

Mass = m = 150 g = 0.15 kg

Initial temperature = 22°C

Final temperature = 35°C

Change in Temperature = ΔT = 13°C

Energy = E = ?

Using the following formula and substituting the values, we get:

E = m × c × ΔT

E = 0.15 × 2440 × 13

E = 4758 J

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How are balanced and unbalanced forces related to motion?
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Suppose that a spring with a larger spring constant was used in this same apparatus. If a given mass were rotated at the same ra
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The new period of rotation using the new spring would be less than the period of rotation using the original spring

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The rocket is fired vertically and tracked by the radar station shown. When θ reaches 66°, other corresponding measurements give
Flauer [41]

Answer:

velocity = 1527.52 ft/s

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Explanation:

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Angular velocity; ω = θ˙˙ = 0.019 rad/s

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So, velocity of the rocket for the given position will be;

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