Suppose your favorite TV scientist has equal masses of frozen water (ice) and liquid water. If she decides to cause both substances to go through a phase change to a phase with more energy (ice to water, water to steam), which substance will require more energy to change phases? Assume we are only dealing with phase changes, not temperature changes. a. Changing liquid water to steam requires more energy. b. They require the same amount of energy.     c. Changing ice

2. Given the PV diagram shown below: T₂ P₂ P P₁ a. What are the pressure, volume, and temperature conditions of the gasin state a? b. Which of the four types of work process will the gas experience when its state changes from d to b? Will it expand contract, or retain its volume when it traces this path? c. In which path or paths does the system perform the least work?

In discussing the energy of a physiological system change in the Gibbs free energy (dG) is more commonly used. In normal physiological condition changing which one of the following will change energy of the system? a. Temperature b. Pressure c. Electrical d. All of the above e. None of the above

D). i.,ii.,iii. Please!

1. Consider a system of constant mass. Which of the following equations is obtained when the 1stand 2nd Law of Thermodynamics are combined?A. ?? = ??? − ??? B. ?? = ???? + ??? C. ?? = ??? + ???  D. ?? = ???? + ??? 2. Sensible Heat involves a change in temperature. Latent Heat involves a change in phase but invery rare occasions, can have a change in temperature as well.A. Both statements are incorrect.B. Both statements are correct.C. Statement 1 is correct while Statement 2 is incorrect.D. Statement 1 is incorrect while Statement 2 is correct   3. According to Carnot, what does he consider “high-grade” energy and “lowgrade” energy, respectively?A. Entropy and EnthalpyB. Enthalpy and EntropyC. Heat and WorkD. Work and Heat

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Two metal spheres are made of the same material and have the same diameter, but one is solid and the other is hollow. If each is given the same amount of energy: A. the two spheres increase their temperatures by the same amount B. the solid sphere becomes warmer than the hollow one C. the hollow sphere becomes warmer than the solid one

What statement is not true? a. In a thermal cycle, heat energy can be completely transformed into mechanical work.    b. Two objects are in thermal equilibrium with a third, then they are in thermal equilibrium with each other. c. The Heat always flows from the hot object to the cold object. d. Entropy of universe is increasing.

A 1.0-kilogram cube of ice made from distilled water initially at 0 degree Celsius is placed in an adiabatic vessel containing 2.0 liters of distilled water initially at a temperature of 25 degrees Celsius. Using the information given below, answer the questions that follow: a. How many grams of the ice melts at the equilibrium condition b. How many grams of the ice will remain unmelted (if there's still any) at the equilibrium condition? c. What is the absolute temperature (in Kelvins) at the equilibrium condition? Water liquid form ice form density (g/mL) 1.00 0.997 Cp (J/ K*mole) 75.35 37.71 ΔHfusion (KJ/mole) 6.02 ΔHvaporization (KJ/mole) 40.657

Double-glazed windows are usually made of two glass panes with a thin layer of air sealed between the panes.  a. Why do these windows reduce heat loss to a much greater extent than occurs if the double glazing is replaced by a thicker glass instead? b. Why does the insulating effect of the double glazing decrease if the two glass panes are too far apart? Explain.