There are several websites and software programs available that can provide you with tools to calculate pressure and temperature.
Here are a few options:
Engineering Toolboxes:Website: https://www.engineeringtoolbox.com/ Engineering Toolbox offers a variety of calculators, including ones for ideal gas law calculations, steam properties, and more.
NIST Chemistry WebBook:Website: https://webbook.nist.gov/chemistry/ The National Institute of Standards and Technology (NIST) Chemistry WebBook provides a wealth of thermodynamic data, including properties of gases, liquids, and solids.
Wolfram Alpha:Website: https://www.wolframalpha.com/ Wolfram Alpha is a powerful computational engine that can handle various calculations, including pressure and temperature based on given conditions.
CoolProp:Website: http://www.coolprop.org/ CoolProp is an open-source fluid property database and calculation library that includes thermophysical properties of various fluids, including gases.
ExcelTemplates:Website: https://www.exceltemplates.org/ This website offers a variety of Excel templates, including ones for gas law calculations, thermodynamic properties, and more.
Chemical Engineering Calculations Online:Website: http://www.checalc.com/ Chemical Engineering Calculations Online provides various calculators related to chemical and thermodynamic properties.
ChemEngSoftware:Website: https://www.chemengsoftware.com/ ChemEngSoftware offers a collection of engineering software tools, including calculators for thermodynamics and fluid properties.
Engineering Express:Website: https://www.engineeringexpress.com/tools/ Engineering Express provides a range of engineering calculators, including ones related to thermodynamics and fluid properties.
When using online calculators or software tools, make sure to review the accuracy and reliability of the source. Additionally, double-check the units you're using for temperature (Kelvin) and pressure (Pascals or other appropriate units) to ensure accurate results. If your calculations involve specific properties or gases, it's important to use tools that provide accurate and up-to-date data for your specific application