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TLS Online TPP Program

#Question id: 20113

A heat engine absorbs heat Q1 at temperature T1 and heat Q2 at temperature T2. Work done by the engine is (Q1 + Q2). This data

#XL - P Chemistry
  1. Violates Ist law of thermodynamics
  2. Violates Ist law of thermodynamics if Q1 is –ve
  3. Violates Ist law of thermodynamics if Q2 is –ve
  4. Does not violate Ist law of thermodynamics
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TLS Online TPP Program

#Question id: 34347

#XL - S Microbiology

Which of the following are true about the Z-value?
TLS Online TPP Program

#Question id: 34348

#XL - S Microbiology

Which of the following correctly distinguish Thermal Death Point (TDP) and Thermal Death Time (TDT)?
TLS Online TPP Program

#Question id: 34349

#XL - S Microbiology

Which of the following plots can be used to determine TDT and Z-value?
TLS Online TPP Program

#Question id: 34350

#XL - S Microbiology

Which of the following conclusions can be drawn if TDT decreases as temperature increases?
TLS Online TPP Program

#Question id: 34351

#XL - S Microbiology

A microbial population is reduced from 1 × 106 CFU/mL to 1 × 103 CFU/mL after 9 minutes at 121°C. Assume first-order kinetics. What is the D-value (in minutes) at 121°C?
TLS Online TPP Program

#Question id: 34352

#XL - S Microbiology

The D-value for a microorganism is 4 minutes at 120°C and 0.4 minutes at 130°C.
What is the Z-value (in °C)?