How much heat is required to raise the temperature of 400g of ethyl alcohol from 25 Coto 50 Co? The specific heat of ethyl alcohol is 0.58 cal/goC.
Given : m= 400 g , cp = 0.58 cal/g°c , T = 50°c - 25°c = 25°c
Solution:
Amount of heat required to raise the temperature is given by :
Q = mcpT
= (400 g)(0.58 cal/g°c)(25°c)
= 5800 cal
We know that , 1 cal = 4.184 J
So Q = 5800*4.184= 24267.2 J = 24.27 kJ
Hence amount of heat required is : 5800 cal or 24.27 kJ
How much heat is required to raise the temperature of 400g of ethyl alcohol from 25...
How much heat is required to raise the temperature of 25.3 g of water from −25 °C to 115 °C?
How much energy is required to raise the temperature of 13.0 grams of solid tin from 21.5°C to 38.9°C? The specific heat of tin is cal/g °C.
How much heat is required to raise the temperature of 60 grams of water from 25-degrees Celsius to 85 degrees Celcius?
How much heat is required to raise the temperature of 20.2 g of water from -25 °C to 115 °C? heat: kcal
How much energy is required to raise the temperature of 0.007 gof lead from 50.0°c to its melting point of 3 27°C ? The specific heat of lead is 128 cal/kg °C and then converts the out put to British thermal unit?
How much heat input in kJ is required to raise the temperature of an empty 35.9-kg vat of a metal with a specific heat of 723-J/(kgxoC) from 11.9oC to 93.5oC?
How much heat (in joules) is required to raise the temperature of 34.0 kg of water from 24 ∘C to 89 ∘C? The specific heat of water is 4186 J/kg⋅C∘. Express your answer using two significant figures.
How much heat (in kJ) is required to raise the temperature of 141,4 g of ethanol (mw=46,07) from 49.82 °C to its boiling point of 78.37 °C and then vaporize it completely creating ethanol gas at the boiling temperature? (specific heat=2.46 J/gºC, ΔHvap = 48.6 kJ/mol)
How much heat (in kJ) is required to raise the temperature of 288.7 g of ethanol (mw=46.07) from 39.38 °C to its boiling point of 78.37 °C and then vaporize it completely creating ethanol gas at the boiling temperature? (specific heat = 2.46 J/g°C, ΔHvap = 48.6 kJ/mol)
How much heat (in kJ) is required to raise the temperature of 202.8 g of ethanol (mw=46.07) from 40.34 °C to its boiling point of 78.37 °C and then vaporize it completely creating ethanol gas at the boiling temperature? (specific heat = 2.46 J/g°C, ΔHvap = 48.6 kJ/mol)