Chemical Engineering
2020 · Paper 1
Take it one question at a time. Try an answer, then check your understanding.
Complete GATE CH 2020 Paper 1 overview, original pages and practice · Timed previous-paper practice
Questions 34–36 of 65. Imported answers require review unless explicitly marked reviewed.
Question 24
Open questionCHNAT1 markNeeds review
The decomposition of acetaldehyde (X) to methane and carbon monoxide follows four-step free radical mechanism. The overall rate of decomposition of X is
where,
,
, and
denote the rate constants of the elementary steps, with corresponding activation energies (in kJ mol⁻¹) of 320, 40, and 0, respectively. The temperature dependency of the rate constants is described by Arrhenius equation.
denotes the concentration of acetaldehyde. The rate constant for the overall reaction is
. The activation energy for the overall reaction (in kJ mol⁻¹) is ________ (round off to nearest integer).Log in to check the answer
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Open questionCHNAT1 markNeeds review
Sum of the eigenvalues of the matrix
is ________ (round off to nearest integer).Log in to check the answer
You can attempt this question now. Sign in to view the answer key, explanations and discussion.Log in to check answerQuestion 26
Open questionCHMCQ2 marksNeeds review
In a box, there are 5 green balls and 10 blue balls. A person picks 6 balls randomly. The probability that the person has picked 4 green balls and 2 blue balls is
Your answerChoose one option.
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