Problem 2: A 0.55-liter bottle is heated using a burner; see image (a). When the air inside the bottle reaches 80.0°C, the pressure in the bottle is at 1.00 atm because the bottle is open to the atmosphere. The burner is turned off, and a pealed, hard-boiled egg is placed on the mouth of the bottle, as shown with image (b). As the bottle cools, there is a pressure difference between the inside and outside that pulls the egg into the bottle; see images (c) and (d). n = | Part (a) In image (b), at the instant that the flame is turned off, how many moles of air are inside the bottle? mol sin() cos() cotan() asin() atan()) acotan() cosh() tanh() Degrees tan() П π (7 89 HOME ^^^45 6 acos() E ^^ sinh() 1 * 1 2 3 cotanh() Radians + 0 END VO BACKSPACE DEL CLEAR (a) Part (b) Considering the situation in image (c), as the air inside cools to 28.5°C, what is the gauge pressure, in pascals, inside the bottle? म (b) (c) (d)
Energy transfer
The flow of energy from one region to another region is referred to as energy transfer. Since energy is quantitative; it must be transferred to a body or a material to work or to heat the system.
Molar Specific Heat
Heat capacity is the amount of heat energy absorbed or released by a chemical substance per the change in temperature of that substance. The change in heat is also called enthalpy. The SI unit of heat capacity is Joules per Kelvin, which is (J K-1)
Thermal Properties of Matter
Thermal energy is described as one of the form of heat energy which flows from one body of higher temperature to the other with the lower temperature when these two bodies are placed in contact to each other. Heat is described as the form of energy which is transferred between the two systems or in between the systems and their surrounding by the virtue of difference in temperature. Calorimetry is that branch of science which helps in measuring the changes which are taking place in the heat energy of a given body.
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