when the temperature of matter increases the particles

Imagine the aforementioned ice cube dropped into a bowl of warm water-the ice must gain heat (thermal energy) from the water in the bowl (see preceding paragraph). This simple statement explains why an ice cube doesn't form outside on a hot day or why it melts when dropped in a bowl of warm water. However, for the purpose of this article, only one small aspect needs to be understood and that is the fact that heat will always flow spontaneously from hotter substances to colder ones. The second law of thermodynamics is a complex topic that requires intensive study in the field of thermodynamics to truly understand. Thermal energy can be otherwise understood as the total microscopic kinetic and potential energy of a system. Heat is a transfer of thermal energy caused by a difference in temperature between molecules. Other measurable physical properties include velocity, mass, and density, to name a few.

It is a measurable physical property of an object-also known as a state variable. Temperature describes the average kinetic energy of molecules within a material or system and is measured in Celsius (☌), Kelvin(K), Fahrenheit (☏), or Rankine (R). Therefore, it is classified as a process variable. Heat is a measure of change, never a property possessed by an object or system. An object can gain heat or lose heat, but it cannot have heat.

True or FalseThe hotter the temperature the faster the molecules move around.Heat describes the transfer of thermal energy between molecules within a system and is measured in Joules.Heat transfers from an area of _temperature to an area of _ temperature.The average heat transfer co-efficient for laminar film condensation on vertical surface is inversely proportional to (where, ΔT = Temperature drop across condensate film ).With the increase of temperature, the Col-burn jH factor.Which of the following is not used as a medium for high temperature heating ?.The actual temperature drop across the heating surface in an evaporator depends on the.The log mean temperature difference in ☌ is approximately Cold oil (0.05 m3/min) of density 800 kg/m3 and specific heat of 2 kJ/kg.K enters at 20☌. Hot water (0.01 m3 /min) enters the tube side of a counter current shell and tube heat exchanger at 80☌ and leaves at 50☌.Neglecting the heat capacity of agitator, the temperature of water (in ☌) is The acceleration due to gravity is 9.8 ms-2. It is stirred by an agitator, which is made to turn by a slowly falling body weighing 40 kg through a height of 4 m. In Joule's experiment, an insulated container contains 20 kg of water initially at 25☌.With increase in temperature, the thermal conductivity of non-metallic amorphous solids.Rate of cooling by big ball as compared to smaller one will be in the ratio of Two balls of same material and finish have their diameters in the ratio of 2: 1 and both are heated to same temperature and allowed to cool by radiation.Which of the following property of air does not increase with rise in temperature?.Thermal conductivity of water _ with rise in temperature.This statement is known as Stefan Boltzmann law. The total radiation from a black body per second per unit area is _ fourth power of the absolute temperature.Temperature of steam at around 540☌ can be measured by.Heat conducted through per unit area and unit thick face per unit time when temperature difference between opposite faces is unity, is called.What is the energy of the movement of particles in a substance?.

The process of heat transfer from one particle of the fluid to another by the actual movement of the fluid particles caused by some mechanical means, is known as.

When heat is transferred from one particle of hot body to another by actual motion of the heated particles, it is referred to as heat transfer by.

The temperature of the inside wall is - 5☌.

The heat flux (from outside to inside) across an insulating wall with thermal conductivity, K= 0.04 W/m.°K and thickness 0.16m is 10 W/m2.

If an object has particles that are moving very quickly, the object 's temperature is probably _.

When the temperature of matter increases the particles