At which temperature is the vapor pressure of ethanol equal to 80. kPa?(1) 48°C (3) 80. °C(2) 73°C (4) 101 °C
1 answer:
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First of all we should know that, 1 Joule = 0.000239 kilocalories.
So, 6.6× J = 6.6×
× 0.000239 kilocalories
6.6× J = 15774000 kilocalories
= 1.58 × kilocalories
One joule is described as the quantity of electricity exerted when a pressure of 1 newton is implemented over a displacement of 1 meter. Within the SI machine, the unit of labor or electricity is the Joule.
The kilocalorie, or meals calorie, is the quantity of warmth required to elevate one kilogram of water 1 °C. warmness capability is the amount of heat required to raise one gram of material 1 °C beneath steady pressure. A kilocalorie is the amount of warmth required to raise the temperature of 1 kilogram of water one diploma Celsius.
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