Question 1 The German-based company has a project aimed at developing viable concepts for the storage of excess electrical energy from wind and solar power plants. The project concept is the conversion of CO2-containing gases into methane in a pressurized reactor using hydrogen produced via electrolysis. The produced gas can be upgraded to synthetic natural gas (SNG) and fed into the well-developed natural gas grid. It can be seen that methane formation from carbon dioxide and hydrogen (methanation) is favored up to a maximum temperature of about 600C. Carbon monoxide formation from carbon dioxide, on the other hand, is favored at temperatures above 600C and 2,500 kPa. The synthetic natural gas (SNG) formed from the main reactor has the following composition: Synthethic Natural Gas (SNG) Percent Weight Composition (%w). Dry Basis CH4 65.00% O2 7.40 CO2 27.60 Estimate the viscosity of synthetic natural gas from the pressurized reactor using: A. Pseudocritical Method for mixture of gases