📘 thermodynamics

1. The problem involves understanding the relationship between heat energy, specific heat, mass, and temperature change. 2. The specific heat capacity formula is given by $$Q = mc\

1. **State the problem:** We need to find the volume of a rigid tank containing 2 kmol of N2 and 6 kmol of CO2 gases at 300 K and 115 MPa using the ideal gas equation. 2. **Write d

1. **State Function and Its Importance** State functions are properties whose values depend only on the current state of the system, not on the path taken to reach that state. Exam

1. **Problem Statement:** We are given a diesel engine with compression ratio $r=18$, cutoff ratio $\rho = 1.05$, and specific heat ratio $c_p/c_v = c=1.4$. We need to calculate th

1. **State the problem**: We need to calculate the mass of air at the inlet of a chamber given: r = 10:1 (compression ratio),

1. **Problem statement:** Calculate properties and performance of an ideal saturated steam Rankine cycle with single-stage regeneration between 1000 psia and 1.0 psia, neglecting p

1. The problem is to convert temperature from Celsius to Fahrenheit. 2. We use the formula for conversion: $$F=\frac{9}{5}C+32$$ where $C$ is Celsius and $F$ is Fahrenheit.

1. **State the problem:** We have a 2.0 kg metal block with specific heat capacity $c = 450$ J/kg°C. It is heated from 30°C to 80°C, doing 400 J of work on the surroundings during