Determine which of the following are true or false and explain your answer: a) During an isothermal process, the entropy of an ideal gas stays constant if there is a net change in either pressure or volume b) Entropy generation takes place when there are irreversibilities in a cycle. c) The lower the isentropic efficiency of a turbine, the more power it will generate with the same input stream and same output pressure.

please answer the following   An irreversible process takes place by which the entropy of the universe increases by 1.51 J/K. If the temperature of the environment in which the process occurred is 245 K, how much energy (in J) was made unavailable for useful work as a result?

QUESTION 4 a) A process involving an ideal gas is carried out in which the temperature changes (AT) at constant volume (V). Consider the following two processes Process A: for a fixed value AT, the mass of the gas (m) is doubled. Process B: the process is repeated with the same initial mass but AT is doubled. State which process has a greater change in entropy (AS). Explain your answer in terms of AS for each process. Write your answer here b) One mole of N2 at 20.5 °C and 6.00 bar undergoes a transformation to the state described by 145 °C and 2.75 bar. Calculate change in entropy (AS) (in unit J K1). (Assume ideal gas behaviour). Given that the molar heat capacity at constant pressure T (CP.m)[J mol¬1 K = 30.81 – 11.87 × 10-3– + . K? + 2.3968 × 10-5 K 1.0176 × 10¬8 K3

A process involving an ideal gas is carried out in which the temperature changes (ΔT) atconstant volume (V). Consider the following two processesProcess A: for a fixed value ΔT, the mass of the gas (m) is doubled.Process B: the process is repeated with the same initial mass but ΔT is doubled.State which process has a greater change in entropy (ΔS). Explain your answer in termsof ΔS for each process.

Assume a sample of an ideal gas is at room temperature. What action will necessarily make the entropy of the sample increase? (a) Transfer energy into it by heat, (b) Transfer energy into it irreversibly by heat, (c) Do work on it. (d) Increase either its temperature or its volume, without letting the other variable decrease, (e) None of those choices is correct.

Imagine that you are rolling three typical six-sided dice. Each way that you can roll a particular outcome using these three dice represents a microstate for that outcome. How many ways can you roll a five with these three dice? That is, how many microstates exist for a roll of five with three dice? What is the entropy associated with an outcome of five in this situation?

please answer all parts they are related. A) What is the thermal efficiency of this engine B) what is the total change in entropy of this ideal gas after after completing the engine cycle?

Please don't provide handwritten solution ...

1) Answer each question TRUE or FALSE, and explain your answer briefly. A few sentences (with an illustrative diagram if relevant) should be sufficient. During a quasistatic adiabatic process, the entropy does not change. b) The volume V is an intensive thermodynamic variable. c) The pressure is an intensive thermodynamic variable.

What is the entropy change for an energy reservoir at 700 degrees Celsius that transfers 1500kJ of heat to a heat engine. Please include your calculations in answer.