Chemical Engineering
2026 · Paper 1
Take it one question at a time. Try an answer, then check your understanding.
Complete GATE CH 2026 Paper 1 overview, original pages and practice · Timed previous-paper practice
Questions 43–45 of 65. Imported answers require review unless explicitly marked reviewed.
Question 43
Open questionCHMCQ2 marksNeeds review
The reaction rate constants of two reactions follow Arrhenius’ law. The activation energies of Reaction 1 and Reaction 2 are
and
, respectively, and
. Assuming same value for the frequency factor for both the reactions, which one of the following statements is CORRECT?Your answerChoose one option.
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Open questionCHMCQ2 marksNeeds review
A control valve with hyperbolic characteristics has a turndown rate (ratio of maximum flow to minimum controllable flow) of 50. The flow rate through the valve at 70% open is 5 m
s
. Assuming constant fluid density and pressure drop across the valve, which one of the following is the flow rate (in m
s
) through the valve at 30% open?Your answerChoose one option.
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You can attempt this question now. Sign in to view the answer key, explanations and discussion.Log in to check answerQuestion 45
Open questionCHMCQ2 marksNeeds review
The gross energy requirement, to reduce a very large feed of coal to such a size that 80% of the product passes through a 100
m screen, is 13 kWh per ton of feed. In a process, 250 ton h
of coal is crushed. The feed size is such that 80% of the feed passes through an opening of 100 mm. The product size range is to be such that 80% of the product passes through an opening of 25 mm. According to Bond’s law, which one of the following is the power consumption (in kW)?Your answerChoose one option.
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