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Efek Variasi Plat Elektroda Cu/Al Pada Generator Hidrogen Sri Wahyu Wardani; Rahadian Zainul
Jurnal Periodic Jurusan Kimia UNP Vol 8, No 1 (2019): PERIODIC
Publisher : Departemen Kimia FMIPA UNP

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (113.37 KB) | DOI: 10.24036/p.v8i1.104874

Abstract

Penelitian ini bertujuan untuk mengetahui efek varisi plat elektroda pada produksi gas hidrogen menggunakan metode elektrolisis. Pada elektrolisis ini digunakan arus dan tegangan tetap sebesar 0.6 Amper dan 2 volt selama 1 jam. Hasil yang didapatkan yaitu reaksi elektroisis terjadi pada plat 8 menggunakan elektrolit aquades, CH3COONa 0,01 M dan NH4Cl 0,01 M  dengan hasil 6 mL, 144 mL, dan 112 mL. Kemampuan petransferan elektron pada setiap elektrolit berkurang pada lapisan plat yang lebih tebal karena tegangan yang digunakan sangat kecil.Keyword : Elektrolisis, Cu-Al, Elektrolit, Arus, Tegangan
Hubungan Kepribadian Introvert terhadap Kemampuan Public Speaking Sri Wahyu Wardani; Rovina Sellanie; Septiana Mulyani
Jurnal Pendidikan Guru Madrasah Ibtidaiyah Al-Amin Vol. 4 No. 2 (2025): October
Publisher : STAI AL-AMIN

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.54723/ejpgmi.v4i2.338

Abstract

This study aims to determine the relationship between introvert personality and public speaking skills of grade 3 students of SDN Lawangan Daya 2 Pamekasan. Public speaking is an important skill that supports students' self-confidence and social development, but is often a challenge for students with introvert personalities. This study uses a qualitative approach with a descriptive type. Data were collected through in-depth interviews with teachers, principals, and students, as well as through participant observation and documentation of learning activities. The results of the study indicate that introvert students tend to have difficulty in public speaking, but have advantages in compiling more in-depth and systematic materials. Environmental factors, such as interactive teaching strategies and teacher support, play an important role in reducing speaking barriers experienced by introvert students. With the right learning approach, introvert students are able to develop their speaking skills optimally. This study recommends the importance of adaptive teaching strategies to support the potential of introvert students in public speaking.