Conservation of energy theorem is also applied to heat transfer. In an isolated system, given heat is always equal to taken heat or heat change in the system is equal to zero. If two objects having different temperatures are in contact, heat transfer starts between them. The amount of heat given is equal to the amount of heat taken. Object one has massFind the final temperature of the mixture, if two cup of water having masses m₁=150g and m₂=250g and temperatures T₁= 30 ºC and T₂=75 ºC are mixed in an isolated system in which there is no heat lost. (cwater=1cal/g.ºC)Temperature of the iron block decreases from 85 ºC to 25 ºC. If the mass of the block is 1,2kg, calculate the heat lost by the block. (ciron=0.115cal/g.ºC)The graph given below shows the relation between given heat and change in the temperatures of the three matters having same masses. Compare the specific heat capacities of these matters.Since the masses of these matters are equal, B has the greatest specific heat capacity because, with the same amount of heat, change in the temperature of the B is lower than the other two matters. Moreover, A has the minimum specific heat capacity, because the change in its temperature with the same amount of heat is larger than the others. Finally, specific heat capacity of the C is between A and B. Thus; Heat Temperature and Thermal Expansion Exams and Solutions Distance and Displacement with Examples Physics Formulas Speed and Velocity Physics Formulas Newtons Law Of Motion Dynamics (Relative Motion, Projectile Motion Newtons Laws) Cheat Sheet Tangential Speed Velocity with Examples Plane Mirrors and Image Formation in Plane Mirrors Critical Angle and Total Reflection Physics Formulas Optics/Cheat Sheet Properties Of Matter (Density Elasticity) Cheat Sheet Heat Temperature and Thermal Expansion Heat Transfer via Conduction Convection and Radiation Calculation with Heat Transfer with Examples Change of Phase/State (Phase Transition) Thermal Expansion and Contraction with Examples Heat Temperature and Expansion Cheat Sheet Electric Potential and Electric Potential Energy Electric Current and Flow of Charge Common Electric Circuits and Combination of Batteries Alternating Current and Direct Current Finding the Potential Difference between the Two Points in Circuits Magnetic Flux And Magnetic Permeability Magnetic Field around a Circular Wire Force Acting on Moving Particle and Current Carrying Wire Interference of Spring Waves with Examples Vectors Exam1 and Problem Solutions Kinematics Exams and Problem Solutions Kinematics Exam1 and Problem Solutions Kinematics Exam2 and Problem Solutions Kinematics Exam3 and Problem Solutions Kinematics Exam4 and Problem Solutions Dynamics Exams and Problem Solutions Dynamics Exam1 and Problem Solutions Dynamics Exam2 and Problem Solutions Work Power Energy Exams and Problem Solutions Work Power Energy Exam 1 and Problem Solutions Work Power Energy Exam 2 and Problem Solutions Work Power Energy Exam 3 and Problem Solutions Impulse Momentum Exams and Problem Solutions Impulse Momentum Exam 1 and Problem Solutions Impulse Momentum Exam 2 and Problem Solutions Rotational Motion Exams and Problem Solutions Rotational Motion Exam 1 and Problem Solutions Rotational Motion Exam 2 and Problem Solutions Optics Exam 1 and Problem Solutions Optics Exam 2 and Problem Solutions Optics Exam 3 and Problem Solutions Optics Exam 4 and Problem Solutions Properties of Matter Exams and Problem Solutions Properties of Matter Exam 1 and Problem Solutions Properties of Matter Exam 2 and Problem Solutions Heat Temperature and Thermal Expansion Exams and Problem Solutions Heat Temperature and Thermal Expansion Exam 1 and Problem Solutions Heat Temperature and Thermal Expansion Exam 2 and Problem Solutions Electrostatics Exams and Problem Solutions Electrostatics Exam 1 and Problem Solutions Electrostatics Exam 2 and Problem Solutions Electrostatics Exam 3 and Problem Solutions Electric Current Exams and Problem Solutions Electric Current Exam 1 and Problem Solutions Electric Current Exam 2 and Problem Solutions Magnetism Exams and Problem Solutions Magnetism Exam 1 and Problem Solutions Magnetism Exam 2 and Problem Solutions |
