Which has more entropy: (a) a piece of paper,or the piece of paper after it has been burned?
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Which has more entropy: (a) a piece of paper,
or the piece of paper after it has been burned?
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- (I) 1.0 kg of water is heated from 0°C to 100°C. Estimatethe change in entropy of the waterA STUDENT EATS 2000 KCAL PER DAY. (A) ASSUMING THAT ALL OF THE FOOD ENERGY IS RELEASED AS HEAT, WHAT IS THE RATE OF HEAT RELEASED (IN WATTS)? (B) WHAT IS THE RATE OF CHANGE OF ENTROPY OF THE SURROUNDINGS IS ALL OF THE HEAT IS RELEASED INTO HEAT AT ROOM TEMPERATURE (20 C)?(a) Calculate the change in entropy when a 0.125-kg chunk of ice melts at 0 °C. Assume the melting occurs reversibly.
- The change in the internal energy with entropy at constant volume is the inverse of temperatureTrue or False? Why?(1) - When a system changes from an equilibrium state A to another equilibrium state B, choose the correct statement for each of the quantities (i – iii): (i) Heat; (ii) Entropy; (iii) Work done by the system. Statements: " (a) "It's a quantity that is determined uniquely for states A and B.' (b) "It's a quantity that is determined by the change between states A and B, and also by specifying how the system changed from A to B."29) Calculate the change in entropy (AS) for the process of freezing 2 kg of liquid methane at 182°C to solid methane at -182°C. Heat of melting/freezing for methane is 59 kJ/kg. A: 0.94 kJ/K B: -0.94 kJ/K C: 1.3 kJ/K D: -6.0 kJ/K E: - 1.3 kJ/K Considering just
- Calculate the entropy of rolling a die three times such that the sum of numbers for the first two observations is divisible by the number obtained third time. (a) 6.47 x103 J/K (b) 2.03 m -kg-s.K (c) 2.81 m² - kg -s. K (d) 2.81x10-3 J/KWhat is the decrease in entropy (in J/K) of 30.0 g of water that condenses on a bathroom mirror at a temperature of 33.5°C, assuming no change in temperature and given the latent heat of vaporization to be 2450 kJ/kg?. (I) What is the change in entropy of 1.00 m3 of water at 0°C when it is frozen to ice at 0°C?